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NYC99LA008 · WSK PZL Krosno KR-03A

11 Oct 1998 · HILLTOWN, PA, United States

WSK PZL Krosno KR-03A · Accident: undershoot on approach

From Philadelphia Gliderport (0PA0) to an unrecorded destination

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Event

NTSB case
NYC99LA008
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
0 · all aircraft and ground
Ground fatalities
0
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Visual Meteorological Cond

WSK PZL Krosno KR-03A

Category
Glider
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N408KP
Operator
Unknown
Onboard fatalities
Unknown
Route
From Philadelphia Gliderport (0PA0)To not recorded
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
Approach
First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Undershoot
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Substantial

Cause areas

  • Pilot in command › Distance/altitude, misjudged

Not plotted · Location withheld: coordinates are missing, conflicting, invalid, or have no accepted acquisition method. No substitute location has been invented.

NTSB narrative

The glider was in the traffic pattern for runway 1, a 2,450 foot long, turf runway. While on downwind, at about 2,000 feet above ground level, the pilot turned the glider back towards the runway. The pilot stated, '...I expected to make the field and was committed to that course. I flew into the trees, was stopped, and slid vertically down onto a pile of wood.' Examination of the wreckage did not reveal any pre-impact abnormalities with the glider. Winds reported about 9 miles southeast of the airport at 1455 edt, were from 320 degrees at 11 knots, with 15 knot gusts.

Probable cause

The pilot's misjudgment of altitude/distance which resulted in an in-flight collision which trees.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record NYC99LA008
Event ID
20001211X11331
Case number
NYC99LA008
Dataset
historical-pre2008
Source SHA-256
89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: 0d57f54fab46e1c8df974ee0aa5ce71eb3b09aac22f81536af6dd0031902ae62; retrieved 2026-09-22T16:32:13.767Z.